Checkhbond: Hydrogen bond assessment

CheckHBond evaluates whether a hydrogen bond
can be formed between two residues in a PDB structure, allowing you to
specify the amino acid present at the second position. The aim of the
program is to assess whether a hydrogen bond can be maintained after a
mutation has occurred.

Note that because the function of the program is to assess
the effects of mutations, it only looks at sidechain/sidechain
and sidechain/mainchain hydrogen bonds.

Enter the residue identifier for the second residue (whose sidechain will be HBonding):

[chain]resnum[insert]

Enter the amino acid type to be checked for the second residue:

(3-letter code)

Cutoff:

Output:

Short
Long

Residue identifiers should be specified in the form
[chain]resnum[insert] where [chain] is an optional chain
name and [insert] is an optional insert code. Thus 102, H23,
27A and H52B are all valid residue identifiers.

The amino acid type should be specified using the three-letter code
(upper, lower, or mixed case).

The cutoff is used to search around overlapping grid points to
account for quantization and rounding errors in forming the grids.